Injection molding machine with fully automatic feeding mechanism

Abstract

This invention provides an injection molding machine with a fully automatic feeding mechanism, relating to the field of injection molding machine technology. It includes an injection molding material conveying structure with a feeding mechanism positioned above it, capable of moving vertically relative to the material conveying structure. The material conveying structure includes a material box composed of two symmetrically arranged half-boxes. Each half-box has a semi-circular core cylinder on its inner side, which can generate heat. The two half-boxes converge to enclose the injection molding screw. The advantages of this invention are that the material box, composed of two symmetrically arranged half-boxes, allows the feeding mechanism to move vertically relative to the injection molding material conveying structure, and when the two half-boxes are opened, the injection molding screw is exposed for easy maintenance. The feeding mechanism can be separated from the material box, allowing for cleaning and maintenance of the connection between the feeding mechanism and the material box. This ensures long-term stable operation of the injection molding machine and guarantees the stability of the products produced.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to an injection molding machine with a full-automatic feeding mechanism. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The injection system is one of the most important components of the injection molding machine, and there are generally three main types: plunger type, screw type, and screw pre-plasticized plunger injection type. The most widely used is the screw type injection molding machine. After a certain amount of plastic is heated and plasticized within a specified time, the screw type injection molding machine injects the molten plastic into the mold cavity through the screw at a certain pressure and speed. After the injection is completed, the molten material injected into the mold cavity is kept in a fixed shape. At present, the screws of most injection molding machines on the market are surrounded by screw sleeves, and the feeding mechanism and the screw sleeve are also fixed together. Therefore, it is very difficult to repair and maintain the screw. Once the connection between the feeding mechanism and the screw is stuck by the material, it will cause poor feeding, thereby affecting the quality of the finished product of the injection molding machine.

[0003] The technical content disclosed in the Chinese patent document (Announcement No.: CN218928448U, Patent Name: A Feeding Mechanism for an Injection Molding Machine) is: A feeding mechanism for an injection molding machine, including a machine body, the machine body including a material pipe, a heating ring and a pumping device, a feeding frame fixedly connected to one side of the machine body, the feeding frame is used to place materials, a connecting frame fixedly connected to one side of the feed frame, the connecting frame provides support for the drive motor, a driving motor is fixedly connected to one side of the upper end of the connecting frame, a stirring rod is fixedly connected to the output end of the driving motor, the driving motor drives the stirring rod to rotate, and facilitates the descent of materials, and diverter plates are evenly arranged on the bottom side of the connecting frame in the feed frame. There are two types of diverter plates, one is a rotatable type and the other is a fixed type. The fixed diverter plate is used to differentiate the materials, and the rotatable diverter plate is rotated under pressure during the falling process of the materials, so that the differentiation efficiency is good.

[0004] It can be seen from the above implementation scheme that although the injection molding machine feeding mechanism is equipped with multiple diverter plates to divert the material, it can be seen from the schematic diagram that the feed frame and the machine body are fixed together, and the screw of the injection molding machine is surrounded by the machine body. Therefore, it is very difficult to repair and maintain the screw or to clean the material between the machine body and the feed frame, which is not conducive to the user's daily maintenance and use of the injection molding machine. Once there is residual material inside the injection molding machine, it will cause pollution to the products produced next time, thereby affecting the quality of the injection molding machine products. Summary of the invention

[0005] The invention overcomes the shortcomings of the prior art and provides a feed box consisting of two symmetrically arranged half boxes. The injection molding screw is arranged in the feed box, and the feeding mechanism can move up and down relative to the injection molding feed structure. Therefore, when the two half boxes are opened, the injection molding screw can be exposed, which is convenient for repair and maintenance of the injection molding screw. The feeding mechanism can be separated from the feed box, so the connection between the feeding mechanism and the feed box can be cleaned and maintained, thereby ensuring that the injection molding machine can work stably for a long time and the product stability of the injection molding machine is guaranteed.

[0006] In order to solve the above technical problems, the invention is implemented through the following technical solutions:

[0007] An injection molding machine with a fully automatic feeding mechanism comprises an injection molding feeding structure, a feeding mechanism is arranged above the injection molding feeding structure, and the feeding mechanism can move up and down relative to the injection molding feeding structure;

[0008] The injection molding feeding structure includes a feeding box, which is composed of two symmetrically arranged half boxes, both of which are provided with semicircular core barrels on the inside, which can generate heat, and the two half boxes are moved closer to the middle to hold the injection molding screw in the middle;

[0009] When the feeding mechanism descends and the two half boxes move toward the middle, the lower end of the feeding mechanism is inserted into the inner side of the two half boxes and communicates with the space formed by the two semicircular core barrels;

[0010] When the two half boxes are opened to the sides, the feeding mechanism moves upward and the injection screw is exposed.

[0011] Furthermore, one end of the injection screw is inserted into the front injection cylinder, and the other end is inserted into the rear feeding cylinder;

[0012] A sealing structure is provided between the feed box and the front injection molding cylinder;

[0013] A sealing structure is provided between the feed box and the rear feed cylinder;

[0014] A sealing structure is arranged between the two half boxes.

[0015] Furthermore, the feeding mechanism includes a first feeding mechanism and a second feeding mechanism, and the first feeding mechanism and the second feeding mechanism have the same structure;

[0016] The first feeding mechanism is arranged above the rear feeding cylinder;

[0017] The second feeding mechanism is arranged above the feed box, and a heater is arranged at the lower end of the second feeding mechanism.

[0018] Furthermore, the injection screw is sequentially provided with a connecting section, a first advancing section, a first stirring section, a second advancing section, a second stirring section, a third advancing section, a first output section, and a second output section;

[0019] The first propulsion section, the second propulsion section and the third propulsion section are all provided with spiral propulsion blades;

[0020] The first stirring section is provided with a first stirring blade, and the first stirring blade is perpendicular to the axial direction of the injection screw;

[0021] The second stirring section is provided with a second stirring blade, and the second stirring blade is perpendicular to the axial direction of the injection screw;

[0022] The first output section is provided with an output spiral groove;

[0023] The second output section is provided with an extrusion slot.

[0024] Furthermore, a stirring assembly is movably inserted inside the half box, and the stirring assembly includes a stirring roller, and when the end of the stirring roller protrudes, it is inserted between the two first stirring blades, and when the end of the stirring roller protrudes, it is inserted between the two second stirring blades;

[0025] The end of the stirring roller does not protrude from the inner side of the semicircular core barrel toward the injection screw.

[0026] Furthermore, the side of the half box is connected to a stirring roller propulsion cylinder, the output end of the stirring roller propulsion cylinder is connected to a stirring roller propulsion cross bar, the stirring roller propulsion cross bar is movably inserted in the half box, and the stirring roller propulsion cross bar is vertically arranged with the stirring assembly;

[0027] The stirring roller pushing crossbar is staggeredly provided with inclined grooves and flat top blocks;

[0028] The stirring roller is formed by connecting a polygonal segment, a plane top block and a circular segment in sequence, an end of the polygonal segment away from the plane top block is provided with an inclined surface, and the outer diameter of the plane top block is larger than the maximum cross-sectional dimensions of the polygonal segment and the circular segment;

[0029] A side of the planar top block away from the inclined surface is connected to a retraction spring;

[0030] The inner side of the half box is provided with a semicircular groove, the semicircular core tube is arranged in the semicircular groove, the half box is provided with a stirring roller sliding hole, and the stirring roller sliding hole includes a communicating cylindrical hole and a polygonal cylindrical hole;

[0031] The inner diameter of the cylindrical hole is larger than the maximum cross-sectional dimension of the polygonal cylindrical hole, the polygonal section is inserted into the polygonal cylindrical hole, and the end of the retraction spring away from the plane top block abuts against the semicircular core tube;

[0032] The semicircular core barrel includes a first heating section, a second heating section, a third heating section, a fourth heating section, and a fifth heating section;

[0033] The second heating section and the fourth heating section are both provided with a stirring sliding hole, the hole diameter of the stirring sliding hole is smaller than the outer diameter of the retraction spring, and the hole diameter of the stirring sliding hole is larger than the diameter of the circular section.

[0034] Furthermore, the injection molding feeding structure includes an opening and closing sliding platform, on which a slide rail and an opening and closing power component are arranged, two opening and closing sliders are slidably connected to the slide rail, the output end of the opening and closing power component is connected to the opening and closing sliders, and the two half boxes are respectively connected to the two opening and closing sliders;

[0035] The injection molding feeding structure is slidably connected to the injection molding feeding sliding platform;

[0036] The injection molding feeding sliding platform is also slidably connected with an injection molding screw rotating motor, which is connected to a screw dragging assembly, and the screw dragging assembly includes a screw separation frame, and screw separation power components are arranged on both sides of the screw separation frame. The output end of the screw separation power component is connected to the injection molding screw rotating motor, and the rear end feeding barrel is connected to the screw separation frame;

[0037] The injection molding feeding sliding platform is arranged on the injection molding machine platform, and the injection molding machine platform is also provided with a total power mechanism, and the output end of the total power mechanism is connected to the injection molding screw rotating motor;

[0038] The injection molding machine is also provided with an injection molding assembly, and the front end injection molding cylinder is movably plugged with the injection molding assembly.

[0039] Furthermore, the second feeding mechanism includes a mixing shell, the mixing shell is connected to the main lifting component, the mixing shell is provided with a cover opening power component, the cover opening power component is connected to the mixing cover body, the mixing cover body is connected to the mixing motor, and the mixing motor is connected to the mixing roller;

[0040] A material passing component is also arranged above the mixing cover body.

[0041] Furthermore, the mixing roller comprises a mixing central shaft, the upper section of which is connected to a plurality of mixing conforming rods, which are distributed in a ring shape around the mixing central shaft;

[0042] The lower section of the mixing center shaft is provided with a material feeding and pushing spiral blade.

[0043] Furthermore, the material transfer assembly includes a material transfer housing, the material transfer housing includes an upper material frame and a lower material frame, an electromagnetic roller is arranged between the upper material frame and the lower material frame, and the electromagnetic roller is connected to a magnetic roller rotation motor;

[0044] A material blocking inclined plate and an iron particle scraping plate are arranged inside the material transfer shell. The material blocking inclined plate is located above the electromagnetic roller and covers the upper half of the electromagnetic roller. The lower end of the material blocking inclined plate does not contact the electromagnetic roller. The iron particle scraping plate is located on the lower side of the electromagnetic roller, and the edge of the iron particle scraping plate contacts the electromagnetic roller.

[0045] An iron scrap outlet is arranged above the iron scrap scrap plate.

[0046] Compared with the prior art, the invention has the following beneficial effects:

[0047] 1. A feed box consisting of two symmetrically arranged half boxes is provided, and the injection molding screw is arranged in the feed box. The feeding mechanism can move up and down relative to the injection molding feeding structure. Therefore, when the two half boxes are opened, the injection molding screw can be exposed, which is convenient for repair and maintenance of the injection molding screw. The feeding mechanism can be separated from the feed box, so the connection between the feeding mechanism and the feed box can be cleaned and repaired, thereby ensuring that the injection molding machine can work stably for a long time and the product stability of the injection molding machine is also guaranteed.

[0048] 2. The feeding mechanism includes a first feeding mechanism and a second feeding mechanism. A heater is also provided at the lower end of the second feeding mechanism. Therefore, different materials can be added when the materials are stirred to different degrees according to production needs to achieve diversity in material ratios.

[0049] 3. A stirring assembly is provided. When the material is conveyed to the first stirring section and the second stirring section of the injection molding screw, the stirring roller of the stirring assembly can extend into the middle of the two first stirring blades or the middle of the two second stirring blades of the injection molding screw to stir the material, so that the material can be stirred during the hot melting process, making the material mixing more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings are used to provide a further understanding of the invention and are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation of the invention. In the accompanying drawings:

[0051] Figure 1 is a general schematic diagram of an injection molding machine according to an embodiment of the present invention;

[0052] Figure 2 It is a schematic diagram of the assembly of the injection molding feeding slide table, the injection molding screw rotating motor, the screw separation frame and the injection molding feeding structure according to an embodiment of the present invention;

[0053] Figure 3 It is an exploded schematic diagram of an injection molding feeding slide table, an injection molding screw rotating motor, a screw separation frame, and an injection molding feeding structure according to an embodiment of the present invention;

[0054] Figure 4 Schematic diagram of an explosion of the injection molding feeding structure of an embodiment of the present invention;

[0055] Figure 5 This is a schematic diagram of the internal structure of the injection molding feeding structure according to an embodiment of the present invention;

[0056] Figure 6 is a perspective view of an injection molding material feeding structure according to an embodiment of the present invention;

[0057] Figure 7 1. It is a schematic structural diagram of a stirring roller propulsion cylinder, a stirring roller propulsion cross bar and a stirring assembly according to an embodiment of the present invention;

[0058] Figure 8 2 is a schematic diagram of the structure of the stirring roller propulsion crossbar according to an embodiment of the present invention;

[0059] Fig. 9 1 is an exploded schematic diagram of a half box and a semicircular core barrel of an embodiment of the present invention;

[0060] Fig.10 is a schematic diagram of a stirring assembly according to an embodiment of the present invention;

[0061] Fig.11 is a cross-sectional view of a feed box according to an embodiment of the present invention;

[0062] Fig.12 is a schematic diagram of a second feeding mechanism according to an embodiment of the present invention;

[0063] Fig.13 is an exploded view of a second feeding mechanism of an embodiment of the present invention;

[0064] Fig.14 is a cross-sectional view of a material transfer housing according to an embodiment of the present invention;

[0065] Fig.15 Schematic diagram of the stirring roller structure of an embodiment of the present invention.

[0066] In the figure: 1, injection molding machine; 2, injection molding assembly; 3, injection molding feed slide table; 4, injection molding screw rotating motor; 5, screw separation assembly; 501, screw separation frame; 502, screw separation power component; 6, injection molding feeding structure; 601, opening and closing slide table; 6011, slide rail; 6012, opening and closing power component; 602, opening and closing slider; 603, feeding box; 6031, half box; 60311, semicircular groove; 60312, second feeding hole; 60313, stirring roller sliding hole; 6031A, cylindrical hole; 6031B, polygonal cylindrical hole; 60 314, crossbar chute; 6032, semicircular core tube; 60321, first heating section; 60322, second heating section; 6032A, stirring slide plug hole; 60323, third heating section; 60324, fourth heating section; 60325, fifth heating section; 6033, stirring roller push cylinder; 6034, stirring roller push crossbar; 60341, inclined groove; 60342, flat top block; 6035, stirring assembly; 60351, stirring roller; 603A, inclined surface; 603B, polygonal section; 603C, flat top block; 603D, circular section; 603 52, retraction spring; 604, injection screw; 6041, connecting section; 6042, first propulsion section; 60421, spiral propulsion blade; 6043, first stirring section; 60431, first stirring blade; 6044, second propulsion section; 6045, second stirring section; 60451, second stirring blade; 6046, third propulsion section; 6047, first output section; 60471, output spiral groove; 6048, second output section; 60481, extrusion groove; 605, front injection cylinder; 6051, extrusion hole; 606, rear feeding cylinder; 6061, inlet Material inlet; 7. First material feeding mechanism; 8. Second material feeding mechanism; 801. Material mixing shell; 802. Material mixing cover; 803. Material mixing motor; 804. Material mixing roller; 8041. Mixing center axis; 8042. Mixing follower rod; 8043. Material unloading pushing spiral blade; 805. Cover opening power component; 806. Material passing assembly; 8061. Material passing shell; 806A. Upper material frame; 806B. Material blocking inclined plate; 806C. Iron scrap scraping plate; 806D. Iron filings outlet; 806E. Lower material frame; 8062. Magnetic roller rotating motor; 8063. Electromagnetic roller; 9. Heater. DETAILED DESCRIPTION

[0067] The preferred embodiments of the invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the invention, and are not used to limit the invention.

[0068] like Figures 1 to 15As shown, an injection molding machine with a fully automatic feeding mechanism includes an injection molding feeding structure 6, a feeding mechanism is arranged above the injection molding feeding structure 6, and the feeding mechanism can move up and down relative to the injection molding feeding structure 6; the injection molding feeding structure 6 includes a feeding box 603, and the feeding box 603 is composed of two symmetrically arranged half boxes 6031, and the inner sides of the two half boxes 6031 are both provided with semicircular core barrels 6032, and the semicircular core barrels 6032 can generate heat. The injection molding feeding structure 6 includes an opening and closing sliding platform 601, and the opening and closing sliding platform 601 is provided with a semicircular core barrel 6032. A slide rail 6011 and an opening and closing power component 6012 are provided on the platform 601. In the present embodiment, the opening and closing power component 6012 is a pneumatic cylinder or an electric cylinder. Two opening and closing sliders 602 are slidably connected to the slide rail 6011. The output end of the opening and closing power component 6012 is connected to the opening and closing sliders 602. The two half boxes 6031 are respectively connected to the two opening and closing sliders 602; therefore, the opening and closing power component 6012 can drive the two half boxes 6031 to move closer to the middle or spread out to both sides.

[0069] The two half boxes 6031 move toward the middle to hold the injection screw 604 in the middle; when the feeding mechanism descends and the two half boxes 6031 move toward the middle, the lower end of the feeding mechanism is inserted into the inner side of the two half boxes 6031 and communicates with the space formed by the two semicircular core barrels 6032; when the two half boxes 6031 are opened to both sides, the feeding mechanism moves upward and the injection screw 604 is exposed. Therefore, it is convenient for users to repair and maintain the injection screw 604. The feeding mechanism can be separated from the feeding box 603, so the connection between the feeding mechanism and the feeding box can be cleaned and repaired, thereby ensuring that the injection molding machine can work stably for a long time and the product stability of the injection molding machine is also guaranteed.

[0070] The injection molding feeding structure 6 is slidably connected to the injection molding feeding slide table 3; the injection molding feeding slide table 3 is also slidably connected to the injection molding screw rotating motor 4, the injection molding screw rotating motor 4 is connected to the screw separation component 5, and the rear end feeding cylinder 606 is connected to the screw separation frame 501; the injection molding feeding slide table 3 is arranged on the injection molding machine 1, and the injection molding machine 1 is also provided with a total power mechanism, and the output end of the total power mechanism is connected to the injection molding screw rotating motor 4; the injection molding machine 1 is also provided with an injection molding component 2, one end of the injection molding screw 604 is inserted into the front injection molding cylinder 605, and the other end is inserted into the rear end feeding cylinder 606; the front injection molding cylinder 605 is movably connected with the injection molding component 2. A sealing structure is provided between the feeding box 603 and the front injection molding cylinder 605; a sealing structure is provided between the feeding box 603 and the rear end feeding cylinder 606; a sealing structure is provided between the two half boxes 6031. The feeding mechanism includes a first feeding mechanism 7 and a second feeding mechanism 8. The first feeding mechanism 7 and the second feeding mechanism 8 have the same structure. The first feeding mechanism 7 is arranged above the rear end feeding cylinder 606. The second feeding mechanism 8 is arranged above the feed box 603. A heater 9 is arranged at the lower end of the second feeding mechanism 8. The heater 9 melts the material input by the second feeding mechanism 8 into liquid, so as to facilitate the full mixing of the material input by the second feeding mechanism 8 and the material input by the first feeding mechanism 7.

[0071] The injection screw 604 is provided with a connecting section 6041, a first propulsion section 6042, a first stirring section 6043, a second propulsion section 6044, a second stirring section 6045, a third propulsion section 6046, a first output section 6047, and a second output section 6048 in sequence; the first propulsion section 6042, the second propulsion section 6044, and the third propulsion section 6046 are all provided with a spiral propulsion blade 60421; the first stirring section 6043 is provided with a first stirring blade 60431, and the first stirring blade 60431 is connected to the injection screw 6044. The axis direction of the injection screw 604 is perpendicular; the second stirring section 6045 is provided with a second stirring blade 60451, and the second stirring blade 60451 is perpendicular to the axis direction of the injection screw 604; the first output section 6047 is provided with an output spiral groove 60471; the second output section 6048 is provided with an extrusion groove 60481, the connecting section 6041 of the injection screw 604 is connected to the injection screw rotating motor 4, and the rotation of the injection screw rotating motor 4 drives the injection screw 604 to rotate, and the rear end feeding barrel 606 is separated from the screw. The screw separation assembly 5 includes a screw separation frame 501, and screw separation power components 502 are arranged on both sides of the screw separation frame 501. In this embodiment, the screw separation power component 502 is a cylinder or an electric cylinder, and the output end of the screw separation power component 502 is connected to the injection screw rotating motor 4. Therefore, when it is necessary to separate the injection screw 604 from the injection screw rotating motor 4, the screw separation power component 502 is started, and the screw separation assembly 5 and the injection feeding structure 6 are connected to the injection screw rotating motor 4. The machine 4 is pushed in the opposite direction, so that the injection screw 604 is separated from the injection screw rotating motor 4, which is convenient for disassembling the injection screw 604 of the injection molding machine separately for repair or replacement. The output end of the total power mechanism is connected to the injection screw rotating motor 4, so the total power mechanism can simultaneously push the injection screw rotating motor 4, the screw separation component 5 and the injection feeding structure 6 installed on the injection molding feed slide table 3 toward the direction of the injection molding component 2, so that the front end injection cylinder 605 can be inserted into the injection molding component 2 for injection molding.

[0072] During injection molding, different materials are respectively put into the first feeding mechanism 7 and the second feeding mechanism 8. The materials in the first feeding mechanism 7 enter from the feeding port 6061 of the rear end feeding cylinder 606 and arrive at the first pushing section 6042 of the injection screw 604. As the injection screw 604 rotates, the spiral pushing blade 60421 of the first pushing section 6042 pushes the materials to the first stirring section 6043. The first stirring section 6043 is provided with a first stirring blade 60431. The first The stirring blade 60431 is perpendicular to the axial direction of the injection screw 604; the semicircular core barrel 6032 includes a first heating section 60321, a second heating section 60322, a third heating section 60323, a fourth heating section 60324, and a fifth heating section 60325; therefore, during the entire process of the material being conveyed by the injection screw 604, the material will melt due to the heating of the semicircular core barrel 6032, and the melted material will continue to be conveyed and stirred and mixed by the injection screw 604.

[0073] A stirring assembly 6035 is movably inserted inside the half box 6031. The stirring assembly 6035 includes a stirring roller 60351. When the end of the stirring roller 60351 protrudes, it is inserted into the two first stirring blades 60431. The material is pushed by the first propulsion section 6042 to move continuously toward the first stirring section 6043. Therefore, the material shuttles between the first stirring blades 60431 and the stirring roller 60351. The stirring roller 60351 is movably inserted between every two first stirring blades 60431. Therefore, when the stirring roller 60351 is inserted between the two first stirring blades 60431, the material is subjected to great resistance and the flow rate becomes small. When the end of the stirring roller 60351 does not protrude from the semicircular core barrel 6032 toward the inner side of the injection screw 604, the stirring roller 60351 is not inserted between the two first stirring blades 60431. At this time, the resistance to the material becomes smaller and the flow rate becomes larger. Since the material needs to constantly avoid the first stirring blades 60431 during the movement, and the first stirring blades 60431 will rotate with the rotation of the injection screw 604, and at the same time, the flow rate is disturbed by the stirring roller 60351, and when the stirring roller 60351 is inserted, the material also has to avoid the stirring roller 60351 and move forward, so the material is more fully mixed.

[0074] When the first batch of materials leaves the first stirring section 6043, most of them have been melted into fluid, and this part of the fluid flows to the second propulsion section 6044. The spiral propulsion blades 60421 of the second propulsion section 6044 push this part of the materials to be transported again. During the transportation process, the second feeding mechanism 8 above the second propulsion section 6044 adds the second batch of materials to it, and therefore a heater 9 is provided at the lower end of the second feeding mechanism 8. Therefore, when the second batch of materials falls from the second feeding mechanism 8 to the second propulsion section 6044, most of them have been heated and melted by the heater 9. At this time, the two parts of hot-melt materials are merged, and the merged materials are not fully mixed, so the merged materials are pushed from the second propulsion section 6044 to the second stirring section 6045. The stirring assembly 6035 is still provided at the periphery of the second stirring section 6045, and the end of the stirring roller 60351 is inserted between the two second stirring blades 60451 when it protrudes. Therefore, the second stirring blade 60451 rotates with the injection screw 604, and the stirring roller 60351 is movably inserted between every two second stirring blades 60451, so that the two melted materials are fully mixed again.

[0075] Then the material continues to be pushed to the third propulsion section 6046. The pitch of the spiral propulsion blade 60421 of the third propulsion section 6046 gradually decreases as the distance from the first output section 6047 decreases. This makes the space where the material is located smaller when pushing the material, and the pressure on the material increases. Then the material is pushed to the first output section 6047. The first output section 6047 is provided with an output spiral groove 60471. The cross-sectional area of ​​the output spiral groove 60471 is smaller than the space between the spiral propulsion blades 60421 of the cross-section of the third propulsion section 6046. Therefore, the material pushed from the third propulsion section 6046 to the first output section 6047 is subjected to greater pressure. The greater pressure causes the material to be squeezed into the extrusion groove 60481 of the second output section 6048. Finally, the material is extruded from the extrusion hole 6051 of the front injection cylinder 605.

[0076] A crossbar slot 60314 is provided inside the half box 6031, and the side of the half box 6031 is connected to the stirring roller propulsion cylinder 6033, and the output end of the stirring roller propulsion cylinder 6033 is connected to the stirring roller propulsion crossbar 6034, and the stirring roller propulsion crossbar 6034 is movably inserted into the crossbar slot 60314, and the stirring roller propulsion crossbar 6034 is a polygonal rod. In this embodiment, the stirring roller propulsion crossbar 6034 is a quadrilateral rod, and the crossbar slot 60314 is a polygonal groove. In this embodiment, the crossbar slot 60314 is a quadrilateral groove, so the stirring roller propulsion crossbar 6034 cannot rotate in the crossbar slot 60314, and the stirring roller propulsion crossbar 6034 is vertically arranged with the stirring assembly 6035; the stirring roller propulsion crossbar 6034 is staggered with inclined grooves 60341 and flat top blocks 60342;

[0077] The stirring roller 60351 is formed by connecting a polygonal segment 603B, a plane top block 603C and a circular segment 603D in sequence. In this embodiment, the polygonal segment 603B is a quadrilateral segment. An inclined surface 603A is provided at one end of the polygonal segment 603B away from the plane top block 603C. The outer diameter of the plane top block 603C is larger than the maximum cross-sectional dimensions of the polygonal segment 603B and the circular segment 603D. The side of the plane top block 603C away from the inclined surface 603A is The semicircular groove 60311 is provided on the inner side of the half box 6031, and the semicircular core tube 6032 is provided in the semicircular groove 60311. The half box 6031 is provided with a stirring roller sliding hole 60313, and the stirring roller sliding hole 60313 includes a cylindrical hole 6031A and a polygonal cylindrical hole 6031B that are connected. In this embodiment, the polygonal cylindrical hole 6031B is a quadrilateral hole, and the inner diameter of the cylindrical hole 6031A is larger than the inner diameter of the polygonal cylindrical hole 6031A. The polygonal section 603B is inserted into the polygonal column hole 6031B. Therefore, the polygonal section 603B cannot rotate in the polygonal column hole 6031B. When installing, the inclined surface 603A of the stirring roller 60351 is directed toward the inclined surface of the inclined surface groove 60341 of the stirring roller pushing cross bar 6034, and the end of the retraction spring 60352 away from the plane top block 603C is pressed against the semicircular core tube 603 2. The second heating section 60322 and the fourth heating section 60324 are both provided with a stirring slide hole 6032A. The aperture of the stirring slide hole 6032A is smaller than the outer diameter of the retraction spring 60352, and the aperture of the stirring slide hole 6032A is larger than the diameter of the circular section 603D. Therefore, the retraction spring 60352 will not pass through the stirring slide hole 6032A and fall into the two semicircular core tubes 6032, thereby ensuring the stable operation of the retraction spring 60352.

[0078] Due to the elastic force of the retraction spring 60352, the inclined surface 603A of the stirring roller 60351 is provided with a force in the direction of the stirring roller pushing cross bar 6034. When the stirring roller pushing cylinder 6033 pulls the stirring roller pushing cross bar 6034 so that the inclined surface groove 60341 is directly above the inclined surface 603A of the stirring roller 60351, the stirring roller 60351 is subjected to the elastic force of the retraction spring 60352, and the upper end of the polygonal segment 603B will be inserted into the inclined surface groove 60341. At this time, the circular segment 603D will be moved from the first stirring blade 60431 or The first stirring blade 60431 or the second stirring blade 60451 is pulled out and does not participate in stirring the materials. When the stirring roller pushing cylinder 6033 pushes the stirring roller pushing cross bar 6034 to move, the inclined groove 60341 squeezes the inclined surface 603A, and finally the top of the inclined surface 603A is pushed out of the inclined groove 60341, and the top of the inclined surface 603A is pushed against the lower end of the flat top block 60342. At this time, the circular segment 603D will be inserted into the first stirring blade 60431 or the second stirring blade 60451 to participate in stirring the materials. The circular segment 603D is cylindrical in shape, which is conducive to the flow of materials from both sides of the cylinder.

[0079] The second feeding mechanism 8 includes a mixing material shell 801, which is connected to a general lifting component. The general lifting component connection can make the second feeding mechanism 8 rise and fall above the injection molding feeding structure 6. A cover opening power component 805 is provided on the mixing material shell 801. In this embodiment, the cover opening power component 805 is a cylinder or an oil cylinder. The cover opening power component 805 is connected to the mixing material cover body 802. The cover opening power component 805 can open or close the mixing material cover body 802, which is convenient for people to observe and repair the internal mechanism of the second feeding mechanism 8. It is connected to a mixing motor 803, which is connected to a mixing roller 804; the mixing roller 804 includes a mixing center shaft 8041, and the upper section of the mixing center shaft 8041 is connected to a plurality of mixing shaped rods 8042, and the upper and lower ends of the mixing shaped rods 8042 are connected to the mixing center shaft 8041, and the middle section of the mixing shaped rods 8042 is close to the inner wall of the mixing shell 801 and changes in shape from top to bottom with the inner wall of the mixing shell 801, and the mixing shaped rods 8042 are distributed in a ring shape around the mixing center shaft 8041; therefore, the mixing shaped rods 8042 can stir the materials at various positions in the mixing shell 801, so that the materials are evenly mixed.

[0080] Since the lower end of the mixing shell 801 is narrowed, the lower section of the mixing center shaft 8041 is provided with a material discharge pushing spiral blade 8043, which pushes the material at the lower end of the mixing shell 801 out so that the material will not be squeezed and stuck at the lower end of the mixing shell 801.

[0081] A feeding assembly 806 is also provided above the mixing cover 802, and the feeding assembly 806 includes a feeding shell 8061, and the feeding shell 8061 includes an upper material frame 806A and a lower material frame 806E, and an electromagnetic roller 8063 is provided between the upper material frame 806A and the lower material frame 806E, and the electromagnetic roller 8063 is connected to the magnetic roller rotating motor 8062; a material blocking inclined plate 806B and an iron particle scraping plate 806C are provided inside the feeding shell 8061, and the material blocking inclined plate 806B is located above the electromagnetic roller 8063 and blocks the upper half of the electromagnetic roller 8063, and the material blocking inclined plate 806 6B has a lower end that does not contact the electromagnetic roller 8063, so the iron particles adsorbed to the electromagnetic roller 8063 can pass through the gap between the material blocking inclined plate 806B and the electromagnetic roller 8063, and the iron particle scraping plate 806C is located on the lower side of the electromagnetic roller 8063. When the electromagnetic roller 8063 is transferred to the lower side, the edge of the iron particle scraping plate 806C contacts the electromagnetic roller 8063; as the electromagnetic roller 8063 rotates, the iron particles on the electromagnetic roller 8063 will be scraped off by the iron particle scraping plate 806C, and an iron filings outlet 806D is provided above the iron particle scraping plate 806C, and the scraped iron filings will fall out from the iron filings outlet 806D.

[0082] In the production of plastic particles, if the raw materials contain iron elements or metals are mixed in the process of recycling and reusing waste plastics, the plastic particles will contain iron particles. If the iron particles are mixed with the materials for production, it will affect the quality of the finished products. Therefore, before the materials are put into the injection molding feeding structure 6, the plastic particles fall from the top of the electromagnetic roller 8063. By contacting the electromagnetic roller 8063, the iron particles in the plastic particles are adsorbed by the electromagnetic roller 8063, thereby achieving the purpose of removing the iron particles in the plastic particles.

[0083] Finally, it should be noted that the above are only preferred embodiments of the invention and are not intended to limit the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the invention.

Claims

1. An injection molding machine with a fully automatic feeding mechanism, characterized in that: It comprises an injection molding material feeding structure (6), a material feeding mechanism is arranged above the injection molding material feeding structure (6), and the material feeding mechanism can move up and down relative to the injection molding material feeding structure (6); The injection molding material feeding structure (6) comprises a material feeding box (603), the material feeding box (603) being composed of two symmetrically arranged half boxes (6031), the inner sides of the two half boxes (6031) being provided with a semicircular core barrel (6032), the semicircular core barrel (6032) being able to generate heat, and the two half boxes (6031) being brought together to embrace the injection molding screw (604) in the middle; When the feeding mechanism descends and the two half boxes (6031) move toward the middle, the lower end of the feeding mechanism is inserted into the inner side of the two half boxes (6031) and communicates with the space formed by the two semicircular core tubes (6032); When the two half boxes (6031) are opened to both sides, the feeding mechanism moves upward and the injection screw (604) is exposed; One end of the injection screw (604) is inserted into the front injection cylinder (605), and the other end is inserted into the rear feeding cylinder (606); A sealing structure is provided between the feed box (603) and the front injection molding cylinder (605); A sealing structure is provided between the feed box (603) and the rear feed cylinder (606); A sealing structure is provided between the two half boxes (6031); The feeding mechanism comprises a first feeding mechanism (7) and a second feeding mechanism (8), and the first feeding mechanism (7) and the second feeding mechanism (8) have the same structure; The first feeding mechanism (7) is arranged above the rear end feeding cylinder (606); The second feeding mechanism (8) is arranged above the feeding box (603), and a heater (9) is arranged at the lower end of the second feeding mechanism (8); The injection screw (604) is provided with a connecting section (6041), a first propulsion section (6042), a first stirring section (6043), a second propulsion section (6044), a second stirring section (6045), a third propulsion section (6046), a first output section (6047), and a second output section (6048) in sequence; The first propulsion section (6042), the second propulsion section (6044) and the third propulsion section (6046) are all provided with spiral propulsion blades (60421); The first stirring section (6043) is provided with a first stirring blade (60431), and the first stirring blade (60431) is perpendicular to the axial direction of the injection screw (604); The second stirring section (6045) is provided with a second stirring blade (60451), and the second stirring blade (60451) is perpendicular to the axial direction of the injection screw (604); The first output section (6047) is provided with an output spiral groove (60471); The second output section (6048) is provided with an extrusion groove (60481); A stirring assembly (6035) is movably inserted inside the half box (6031), and the stirring assembly (6035) comprises a stirring roller (60351). When the end of the stirring roller (60351) protrudes, it is inserted between the two first stirring blades (60431) and between the two second stirring blades (60451); When the end of the stirring roller (60351) does not protrude from the semicircular core barrel (6032) toward the inner side of the injection screw (604), it is not inserted between the two first stirring blades (60431) and between the two second stirring blades (60451); The side of the half box (6031) is connected to a stirring roller propulsion cylinder (6033); the output end of the stirring roller propulsion cylinder (6033) is connected to a stirring roller propulsion cross bar (6034); the stirring roller propulsion cross bar (6034) is movably inserted into the half box (6031); and the stirring roller propulsion cross bar (6034) and the stirring assembly (6035) are arranged vertically; The stirring roller pushing cross bar (6034) is provided with inclined grooves (60341) and flat top blocks (60342) in an alternating manner; The stirring roller (60351) is formed by sequentially connecting a polygonal segment (603B), a plane top block (603C), and a circular segment (603D); an inclined surface (603A) is provided at one end of the polygonal segment (603B) away from the plane top block (603C); and the outer diameter of the plane top block (603C) is larger than the maximum cross-sectional dimensions of the polygonal segment (603B) and the circular segment (603D); A side of the planar top block (603C) away from the inclined surface (603A) is connected to a retraction spring (60352); The inner side of the half box (6031) is provided with a semicircular groove (60311), the semicircular core tube (6032) is arranged in the semicircular groove (60311), the half box (6031) is provided with a stirring roller sliding hole (60313), and the stirring roller sliding hole (60313) includes a cylindrical hole (6031A) and a polygonal cylindrical hole (6031B) which are connected to each other; The inner diameter of the cylindrical hole (6031A) is larger than the maximum cross-sectional dimension of the polygonal cylindrical hole (6031B), the polygonal segment (603B) is inserted into the polygonal cylindrical hole (6031B), and one end of the retraction spring (60352) away from the plane top block (603C) abuts against the semicircular core tube (6032); The semicircular core barrel (6032) comprises a first heating section (60321), a second heating section (60322), a third heating section (60323), a fourth heating section (60324), and a fifth heating section (60325); The second heating section (60322) and the fourth heating section (60324) are both provided with a stirring sliding hole (6032A), the hole diameter of the stirring sliding hole (6032A) is smaller than the outer diameter of the retraction spring (60352), and the hole diameter of the stirring sliding hole (6032A) is larger than the diameter of the circular section (603D).

2. The injection molding machine with a fully automatic feeding mechanism according to claim 1, characterized in that: The injection molding material feeding structure (6) comprises an opening and closing sliding platform (601), on which a slide rail (6011) and an opening and closing power component (6012) are arranged, two opening and closing sliders (602) are slidably connected to the slide rail (6011), an output end of the opening and closing power component (6012) is connected to the opening and closing sliders (602), and two half boxes (6031) are respectively connected to the two opening and closing sliders (602); The injection molding material feeding structure (6) is slidably connected to the injection molding material feeding sliding platform (3); The injection molding feeding sliding platform (3) is also slidably connected to an injection molding screw rotating motor (4), the injection molding screw rotating motor (4) is connected to a screw separation component (5), the screw separation component (5) comprises a screw separation frame (501), screw separation power components (502) are arranged on both sides of the screw separation frame (501), the output end of the screw separation power component (502) is connected to the injection molding screw rotating motor (4), and the rear end feeding barrel (606) is connected to the screw separation frame (501); The injection molding feeding slide table (3) is arranged on the injection molding machine (1), and the injection molding machine (1) is also provided with a total power mechanism, and the output end of the total power mechanism is connected to the injection molding screw rotating motor (4); The injection molding machine (1) is also provided with an injection molding component (2), and the front injection molding cylinder (605) is movably connected to the injection molding component (2).

3. The injection molding machine with a fully automatic feeding mechanism according to claim 1 or 2, characterized in that: The second material feeding mechanism (8) comprises a material mixing shell (801), the material mixing shell (801) is connected to the main lifting component, a cover opening power component (805) is provided on the material mixing shell (801), the cover opening power component (805) is connected to the material mixing cover body (802), the material mixing cover body (802) is connected to the material mixing motor (803), and the material mixing motor (803) is connected to the material mixing roller (804); A material passing assembly (806) is also provided above the mixing cover (802).

4. The injection molding machine with a fully automatic feeding mechanism according to claim 3, characterized in that: The mixing roller (804) comprises a mixing central axis (8041), the upper section of the mixing central axis (8041) being connected to a plurality of mixing shaped rods (8042), the mixing shaped rods (8042) being distributed in a ring shape around the mixing central axis (8041); The lower section of the mixing center shaft (8041) is provided with a material feeding pushing spiral blade (8043).

5. The injection molding machine with a fully automatic feeding mechanism according to claim 4, characterized in that: The material transfer assembly (806) comprises a material transfer housing (8061), the material transfer housing (8061) comprises an upper material frame (806A) and a lower material frame (806E), an electromagnetic roller (8063) is arranged between the upper material frame (806A) and the lower material frame (806E), and the electromagnetic roller (8063) is connected to a magnetic roller rotation motor (8062); A material blocking inclined plate (806B) and an iron particle scraping plate (806C) are arranged inside the material transfer shell (8061); the material blocking inclined plate (806B) is located above the electromagnetic roller (8063) and covers the upper half of the electromagnetic roller (8063); the lower end of the material blocking inclined plate (806B) does not contact the electromagnetic roller (8063); the iron particle scraping plate (806C) is located on the lower side of the electromagnetic roller (8063); and the edge of the iron particle scraping plate (806C) contacts the electromagnetic roller (8063); An iron scrap outlet (806D) is provided above the iron scrap scraping plate (806C).

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